EP 3331958 A4 20190424 - AQUEOUS DISPERSIONS COMPRISING POLYURETHANE AND ETHYLNENIC COPOLYMERS FOR HEAT SEALABLE COATINGS
Title (en)
AQUEOUS DISPERSIONS COMPRISING POLYURETHANE AND ETHYLNENIC COPOLYMERS FOR HEAT SEALABLE COATINGS
Title (de)
WÄSSRIGE DISPERSIONEN MIT POLYURETHAN- UND ETHYLENCOPOLYMEREN FÜR HITZEVERSIEGELBARE BESCHICHTUNGEN
Title (fr)
DISPERSIONS AQUEUSES COMPRENANT DU POLYURÉTHANE ET DES COPOLYMÈRES ÉTHYLÉNIQUES POUR REVÊTEMENTS THERMOSCELLABLES
Publication
Application
Priority
- US 201562201726 P 20150806
- US 2016045735 W 20160805
Abstract (en)
[origin: WO2017024211A1] A film forming aqueous dispersion having utility as heat seal coatings for blister packaging applications comprises a blend of 10-90% by weight of one or more polyurethane dispersions; 90-10% by weight one or more compatible ethylenic copolymer dispersions/emulsions; an anti-blocking additive at 0.1-12 weight % of the total solids; and optional additives including wetting, defoaming, thickener, antifungal additives. The heat seal coating compositions provide enhanced and balanced properties such as a reduction of organic solvents, a tack free coating surface off the press, good press runnability, easy clean-up, antiblocking from ambient temperature to 50 °C, heat-activation with no pot life at elevated temperatures, and, heat sealability to various plastic substrates including Virgin Poly(ethylene terephthalate) (PET), recycle PET (RPET), Amorphous PET (APET), PET-Glycol modified (PETG), PETG/APET/PETG (GAG) and Polyvinyl chloride (PVC).
IPC 8 full level
C09J 11/06 (2006.01); C09D 133/08 (2006.01); C09D 175/04 (2006.01); C09J 133/06 (2006.01); C09J 175/04 (2006.01)
CPC (source: EP US)
B65D 75/36 (2013.01 - US); C09D 5/26 (2013.01 - US); C09D 7/65 (2017.12 - US); C09D 123/0838 (2013.01 - US); C09D 133/08 (2013.01 - EP US); C09D 175/04 (2013.01 - EP US); C09J 5/06 (2013.01 - US); C09J 11/06 (2013.01 - EP US); C09J 11/08 (2013.01 - US); C09J 123/0838 (2013.01 - US); C09J 133/06 (2013.01 - US); C09J 175/04 (2013.01 - EP US); C09J 2423/04 (2013.01 - US); C09J 2475/00 (2013.01 - US); C09J 2491/00 (2013.01 - US)
Citation (search report)
- [Y] US 2007087189 A1 20070419 - COOPER ROBIN [BE]
- [Y] EP 1167454 A1 20020102 - NAT STARCH CHEM INVEST [US]
- See references of WO 2017024211A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2017024211 A1 20170209; BR 112018002508 A2 20181002; BR 112018002508 B1 20221116; CN 108026421 A 20180511; CN 108026421 B 20200717; EP 3331958 A1 20180613; EP 3331958 A4 20190424; MX 2018001538 A 20180507; US 10611928 B2 20200407; US 2019010362 A1 20190110
DOCDB simple family (application)
US 2016045735 W 20160805; BR 112018002508 A 20160805; CN 201680055374 A 20160805; EP 16833927 A 20160805; MX 2018001538 A 20160805; US 201615750558 A 20160805